Question

So i have this function that parses data from an url string and set labels.

- (void)viewDidLoad
{
    [super viewDidLoad];
    [self parseAndSetLabels];
}

The problen is that if you have a bad connection it can take a while and it look likes the app froze, but it actually do the parseAndSetLabels function before it animates the view.

So how can i make the viewLoad and after that run my function ?

(like in this order)

-(void)main
{
     [self viewDidLoad]
     [self parseAndSetLabels];
}

Answer 1

As Nickolay O. said, use NSURLConnection asynchronously with its delegate methods or you can call parseAndSetLabels method in your viewDidAppear: method.
Placing your call inside this last method, it will be called every time the view appears but if you don’t want this, you can use simple boolean conditions to call this method only once, like in this example:

YourController.h

@property (nonatomic) BOOL condition;

YourController.m

-(void)viewDidLoad
{
    [super viewDidLoad];
    self.condition = YES;
}
-(void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    if (self.condition)
    {
        [self parseAndSetLabels];
        self.condition = NO;
    }
}

However, in your case, NSURLConnection and its delegate are the best solutions.